Browsing Fakultät für Chemie (inkl. GAUSS) by Advisor & Referee "Das, Shoubhik Dr."
Now showing items 1-11 of 11
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Metallaelectro-Catalyzed C─H Activations by 3d Transition Metals
(2020-09-17)The functionalization of C–H bonds largely relies on organic (pseudo-)halide electrophiles as coupling partners, which results in stoichiometric quantities of undesired by-products. Therefore, to achieve better resource ... -
Selectivity Control in 3d Transition Metal-Catalyzed C–H Activation
(2019-08-23)Methods for the selective functionalization of otherwise inert C–H bonds have been recognized as a transformative tool in synthetic organic chemistry, with applications ranging from the synthesis of complex bioactive ... -
C-H Activation by Nickel and Iron Catalysis
(2019-08-08)The thesis contents methods for the selective activation and functionalization of C–H bonds, among the most abundant bonds in organic molecules. In particular, earth-abundant and cost-effective nickel and iron complexes ... -
Investigations towards the design, synthesis and application of new sulfur-based transfer reagents
(2019-06-20)New dibenzothiophenium-based alkynylation reagents were prepared and their versatile reactivity was demonstrated in reactions with benchmark C-, S-, N- and P-nucleophiles. Straightforward experiments applying 13C-labeled ... -
Cobalt(III)- and Manganese(I)-Catalyzed C-H and C-C Activations
(2019-03-28)Metal-catalyzed C─H and C─C functionalizations have become an increasingly viable approach, which allows the direct formation of C─C and C─heteroatom bonds in an atom- and step-economical manner. However, the significant ... -
New Methodologies for the Regio- and Stereoselective Electrophilic Cyanation of Alkynes
(2019-01-04)The ability of sulfur imidazolium thiocyanates salts to serve as a remarkable source of cyano groups was tested, thus efficiently promoting cyanations of internal and terminal alkynes. The methods described are performed ... -
Late-Stage Peptide Functionalization by Ruthenium-Catalyzed C H Arylations and Alkylations
(2018-11-08)The thesis contents methods for the selective activation and functionalization of C–H bonds of the C2 position of a tryptophan moiety incorporated into peptides. Palladium-catalyzed C-H arylation reactions applying ... -
Bimetallic Complexes for Cooperative Polymerization Catalysis
(2018-09-07)This work contributed to the understanding of cooperativity in bi- and oligometallic complexes through three chapters. The first chapter on CO2/epoxide copolymerization led to the discovery of several promising novel ... -
Hybrids of SNARE Transmembrane Domains and Artificial Recognition Motifs as Membrane Fusion Inducing Model Peptides
(2018-03-13)Protein mediated fusion of membranes is a crucial biological process. For instance, SNARE (soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein receptor) proteins are involved in neuronal exocytosis. However, ... -
C-H and C-C Activation by Cobalt and Ruthenium Catalysis
(2017-12-18)The thesis contents methods for the selective activation and functionalization of C–H and C–C bonds, among the most abundant bonds in organic molecules. In particular, earth-abundant and cost-effective cobalt complexes ... -
Design, Synthesis and Applications of new cationic ligands of the 15th main group elements
(2017-12-08)The dissertation focuses on the development of new cationic phosphines and their applications in transition metal catalyses. In pi-acid catalysis they proved their superiority in comparison with state of the art ligand ...